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After installing and using plugin https://github.com/NoahY/q2a-expert-questions , when I tried to ask a private question I met the Notice:

Ask about the Notice: Undefined index: main_form_tags in C:\myfolder\htdocs\q2a\qa-include\qa-app-format.php(1456) : eval()'d code on line 178

Q2A version: 1.5.x
closed as a duplicate of: Help Desk/Expert Only Questions?

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What is your language ? Dida you modify qa-expert-lang-default.php file ?
Maybe you should change its encoding into UTF-8 without BOM .

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I've used my Q2A code for a long time (about 1 month) and it's the first time I've met this bug (after installing the plugin)
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I was asking if you modified qa-expert-lang-default.php file that is a part of the plugin.
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Thanks, I understood your answer. I've never changed the file qa-expert-lang-default.php and it's in "UTF-8 without BOM" encoding already.
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